Illuminating device for bakers&#39; ovens.



"Nu. 7.||,9-3|. Patenfed Oct. 23, I902.

A; BARENZ. I ILLUMINATYINIG DEVICE FOR BAKERS? OVENS.

(Application filed Feb. 2, 1901.)

2 Sheets-Sheet l.

(No Model.)

riqfl' WITNESSES: I

v INVI'EYITDRZ ABAM @AREN ATTORN No. 7|l,93|'. Patented Oct. 28, I902.

A. BARENZ. ILLUMINATING DEVICE FOR BAKERS" OVENS.-

(Application filed. F eb. 2, 1901;

FiqA- INVENTORL ADAM @Afii i I 7 ATIOR Y Tu: moan Plrrzas co. mow-mic wAsnmaToN. n. c.

UNITED STATES PATENT OFFICE.

- ADAM BARENZ, on NEW YORK, N. Y.

ILLUMINATING DEVICE FOR BAKERS OVENS.

SPECIFICATION forming part of Letters Patent No. 711,931, dated October 28, 1902.

Application filed February 2, 1901. Serial No. 45,735. (No model.)

To all whom it may concern:

Be it known that I, ADAM BARENZ, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Illuminating Devices for Bakers Ovens or the Like; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

The present invention relates generally to improvements in bakers 0vens,and more particularly to a novel construction andarrangement of device or means for illuminating the baking-chamber of the oven.

This invention therefore has for its principal object a novel construction of illuminating device or' apparatus to be employed with a bakers oven provided with a concavo-convex glass partition in one end extending into the baking-chamber, whereby the entire interior surface of the said chamber is fully illuminated at all times and the escape of the heat from said chamber is prevented.

The invention has forits further object the production of a novel construction of illuminating device for bakers ovens combining two members, one of which is secured directly in the wall of the oven and has its rear end extending into the baking-chamber and the other member being provided with the said glass partition at its rear end and being slidably and removably arranged within the outer member for cleaning of the said glass partition or for replacing the said glass partition should the same through some unforeseen accident become broken.

The main purpose of this invention, therefore, is to improve the general construction of bakers ovens and to provide in connection with the oven an illuminating device, which becomes a fixture of the oven, which. is of a simple construction, is inexpensive, and can be readily applied to any construction of oven.

The invention therefore consists in the novel illuminating devices for bakers ovens, to be hereinafter fully set forth; and, furtherspecification and then finally pointed out in the clauses of the claim, which are appended to the specification and form a part thereof.

The invention is clearly illustrated in the accompanying drawings, in which- Figure 1 is a front view of a bakers oven provided with an illuminating device or fixture embodying the principles of my present invention; and Fig. 2 is a longitudinal vertical section of the oven and said illuminating device, said section being taken on line 2 2 in said Fig. 1 and said view illustrating one manner of adapting the illuminating device to the oven. Fig. 3 is a vertical cross-section of the oven and illuminating device, said section being taken on line 3 3 in said Fig. 2. Fig. 4 is an enlarged side elevation of the said illuminating device, showing the same in its position in the front wall of the oven. Fig. 5 is a longitudinal vertical section of the said illuminating device; and Fig. 6 is a vertical crosssection taken on line 6 6 in said Fig. 5, said views illustrating a gas-fixture employed with the said device. Fig. 7 is a vertical cross-section of the said device similar to that represented in said Fig. 6, but illustrating in connection with the said device an electric lamp for lighting the interior of the baking-chamber of an oven when the illuminating device is placed in position.

Similar numerals of reference are employed in all of the said above-described views to indicate corresponding parts.

In the said drawings, 1 indicates the complete oven. 2 is the baking-chamber, 3 the front wall, and 4 the arch above the bakingchamber.

In order that the baking-chamber may be properly illuminated throughout its interior, the illuminating device, to be presently described in detail, is arranged in such a position in the front wall 3 of the oven that the rear end of the illuminating device, which is provided with a glass partition, is placed as near as possible at the highest point of the baking-chamber 2 and as near to the longistantially as illustrated in Figs. 2 and at.

tudinal central axis of the arch 4, as clearly illustrated in Figs. 2 and 3 of the drawings whereby the light-rays are thrown into and through the entire portions of the bakingchamber 2 and the rear of said chamber is as fully illuminated as the front of the same. The said illuminating device, which is indicated by the reference-numeral 5, consists, essentially, of two members 6 and 7, arranged one within the other, the inner member 7 be ing capable of a sliding movement within the said outer member 6, whereby it can be entirely withdrawn from said outer member 6, if desired and for the purposes to be hereinafter more fully set forth. The said outer member 6, as will be seen from the several figures of the drawings, comprises a cylindrical portion 8, being formed at the top with a rectangularly-shaped part 9, which extends rearwardly and terminates in a vertical wall 10 at the back, substantially as illustrated. Thus the greater portion of the said outer member 6 Will be formed with a chamber of a rectangular cross-section and with the cylindrical part 11 at the extreme rear end of the member 6. The said cylindrical portion 11 of the said outer member 6 is preferably provided upon its inner cylindrical surface with a shoulder or other suitable projection 12, surrounding the opening 13 in the rear end of said part. At the forward end the said member 6 is preferably provided with a flange 14. This member-6 is walled up in the front Wall 3 or other suitable part of the oven 1 in such a manner that the greater portion of the cylindrical part 8 of said member and the rectangular part 9 will be set in the said wall, a portion of the said cylindrical part 8 and the cylindrical portion 11 extending beyond the inner surface of the said wall and projecting into the baking-chamber 2, sub- In order that the said member 6 may be placed at the highest possible point within the said baking-chamber, the rear end portion-of the said rectangular part 9 can also be bricked in by a portion of the arch 4:, substantially as illustrated, the flange 14; of said member 6 being fitted against the outer face of the front wall 3 of the oven. Of course it will be understood that this manner of arranging and securing the said member 6 in position in the front wall of the oven is merely the preferred form to provide for the best results in illuminating the interior of the baking-chamber, and the said member 6 may be arranged in any other desired position in the wall 3, or it may be secured in position in any one of the other walls of the oven.

Slidably and removably arranged Within the rectangular portion of the outer member 6 is the inner member 7, hereinabove mentioned. This member 7 comprises a cylindrical portion 15, which is longitudinally open at the top and is formed with a rectangularlyshaped portion 16, which extends rearwardly and terminates in a vertical wall 17 at the back, substantially as illustrated. It will thus be seen that the greater portion of the said inner member 7 will be formed with a chamber of a rectangular cross-section and with-the cylindrical part 18 at the extreme rear end of the member 7. At the forward end the said inner member 7 is provided with a flange 19. Within the rear and open end of the said inner member 7 I have detachably secured, by'means of a screw 20 or any other suitable fastening means, a glass or other suitable glass partition 21, which is preferably made concave-convex, as illustrated. From an inspection' of the several figures of the drawings it will be clearly seen that the said inner member 7 can be slidably arranged within the inner portion of the outer member 6, and when so arranged, the two rectangular portions of the respective members being in engagement with each other, the inner member 7 is held against rotation with the said member 6. It will also be seen that the shoulder or flange 12 of the outer member 6 and the two flanges 14 and 19 of the respective members 6 and 7 serve as stops and limit the movement of the inner member when it is slid into position in the outer member. When the two members are thus arranged in their telescopic arrange ment, the said glass partition 21 will project from the open end portions of the two members and-the light-rays from a lighted gas-jet 22 within said inner member'7 will be thrown in all directions into the baking-chamber 2 of the oven, and thereby thoroughly illuminate the same. The said gas-jet 22 is attached to a gas-pipe 23, suitably secured within the said member 7 by means of clamps 24 or any other suitable fastening means, and in order that the said inner member may be withdrawn from within the outer member 6 for the purpose of cleaning the said glass partition 21'or for any other necessary purposes the said gas-pipe 23 has connected therewith a piece of flexible tubing 25, which is also secured to the end of the main gas-pipe 26, secured in position against the outer surface of the wall of the oven, as clearly illustrated in Fig. 1 of the drawings. This gas-pipe 26 is provided with a cock 27 for turning on or off the supply of gas. r

In place of the gas-jet and connecting gaspipes an electric lamp 28 may be suitably secured at or near the rear end of the said inner member 7 in front of the glass partition 21, said lamp being placed in circuit with the source of electric supply by means of suitable electric wires 29, substantially as illustrated in Fig. 7. In order thata free circulation of air may be had through the inner chamber of the inner member 7 and then through the slight space 31, formed by the outer wall of the inner member 7 and the inner surface of the outer member 6 when the two members have been placed in their respective positions in the wallof the oven, the said inner member 7 may be provided with holes or perforations 30, through which the air can pass, and thereby produce a proper circulation and fresh supply of air to enable the proper burning of the gas at the gas-jet.

The illuminating device hereinabove described may be employed with bakers ovens of the various kinds, and, if desired, an ordinary oil-lamp can also be employed with the device without danger of explosion, since there is at all times a clear circulation of air into the inner member 7 and out therefrom through the outer member, from which the heated air passes at the mouth or opening surrounded by the flange 14, as will be clearly understood from an inspection of Fig. 5.

From an inspection of the several figures of the drawings and from the description of my invention it will be seen that I have devised a simply constructed illuminating device which can be cheaply made and can be readily applied to bakers ovens and other apparatus of a similar nature, the inner member of which can be quickly and easily withdrawn for the cleaning of the glass partition when the same becomes dulled by the accumula tion of dirt, steam, or other objectionable matter or for the purpose of replacing a.

broken glass partition by a new one. Furthermore, by means of this arrangement of re flector the light-rays are thrown throughout the entire portions or interior of the baking-chamber,'whereby the chamber is more positively and perfectly illuminated than by means of the ordinary gas-jet usually inserted through an opening in the front wall of the oven.

I am fully aware that changes may be made in the several arrangements and combinations of parts as well as in the details of the construction thereof without departing from the scope of my present invention. Hence Ido not limit my invention" to the exact arrangements and combinations of the parts as described in the previous specification and as illustrated in the accompanying drawings, nor do I confine myself to the exact details of the construction of any of the said parts.

Having thus described my invention, what I claim is 1. An illuminating device for bakers ovens, consisting of an outer chambered member 6 having a cylindrical body portion provided with an opening in the top, an inclosing rectangular portion 9 above said opening, and an unbroken cylindrical end portion 11, and an inner chambered member 7 having a cylindrical body portion provided with an opening in the top, an inclosing rectangular portion 16 above said opening, and an unbroken'cylindrical end portion 18, said inner member 7 being removably arranged within said outer member 6, and a concavo-convex glass partition projecting from the open end of said outer member, substantially as and for the purposes set forth.

2. An illuminating device for bakers ovens, consisting of an outer chambered member 6 having a cylindrical body portion provided with an opening in the top, an inclosing rectangular portion 9 above said opening, and an unbroken cylindrical end portion 11, and an inner chambered member 7 having a cylindrical body portion provided with an opening in the top,an inclosing rectangular portion 16 above said opening, and an unbroken cylindrical end portion 18, said inner member 7 being removably arranged within said outer member 6, a concave-convex glass partition projecting from the open end of said outer member, and a means of illumination within said inner member, substantially as and for the purposes set forth.

3. An illuminating device for bakers ovens, consisting of an outer chambered member 6 having a cylindrical body portion provided with an opening in the top, an inclosing rectangular portion 9 above said opening, and an unbroken cylindrical end portion 11, and an inner chambered member 7 having a cylindrical body portion provided with an opening in the top, an inclosing rectangular portion 16 above said opening, and an unbroken cylindrical end portion 18, said inner member 7 being removably arranged within said outer member 6, a concavo-convex glass partition projecting from the open end of said outer member, and means Within said outer member, with which the inner member is brought in engagement to limit the sliding motion of said inner member, substantially as and for the purposes set forth.

In testimony that I claim the invention set forth above I have hereunto set my hand this 31st day of January, 1901.

ADAM BARENZ. Witnesses:

FREDK. C. FRAENTZEL, GEO; D. RICHARDS. 

